Concrete-conveyer.



No. 894,813. I 1 [PATENTED A G. 4, 1908.

J.- w. BUZZELL & W. H; LARKIN,. JR.

CONCRETE GONVEYER.

APPLICATION FILED JUNE 131.1907. 4 3 SKEETB-BHEET 1-.

a0 l as INVENTORS ATTORN EY PATENTED AUG. 4, 1908.

. J. W. BUZZELL & W. H. LARKIN, J'n. CONCRETE GONVEYER.

APPLICATION FILED JUNE 13, 1907.

- 3 SHEETS-BHEET 2.

,2. I W W X I x j I, 344

ATTURN'EY No. 894,813. PATENTED AUG. 4, 1908.

J. w. BUZZELL & W. H. LARKIN, JR.

CONCRETE OONVEYER.

AlPLIdATION FILED JUNE 13, 1907.

3 SHEETS-SHEET 3,

INVENTORS fi BY {5M ATT RNEY distances.

' placed inside t UNITED STATES I PATENT oEEIcE.

JosrAn WILLIAM BUZZELL, OF EAST ORANGE, NEW JE SEY, AND WILLIAM H.LARKIN, JR.,

' OF Wo oEsTER, MASSACHUSETTS.

' GONCBE'IE-CONVEYER.

Specification of Letters Patent.

Patented Aug. 4, 1908.

Application filed June 13, 1907. semi No. 878,897.

To all whom 'it may concern:

Be it known that we, JOSIAH WILLIAM BUzzELL and WILLIAM H. LARKIN, Jr.,citizens ofthe United States, and residents, res ectively, of EastOrange, in the county of ssex and State of New Jersey, United "States ofAmerica, and of Worcester, in the lowing specification and point out itsnovel featuresin claims.

Referring to the drawings, Figure 1 is 'a side elevation, partly insection, of an apparatus which we have designed for carrying ourinvention into effect. Fig, 2 is aside elevation, partly in section, ofan arrange-' ment for handling and conveying material in largerquantities. Fig. 3 shows in cross-sec tion a pressure-controlling valvewhich may be used in conjunction with the arrangement of parts shown inFig. 2. Fig. 4 is an elevation of another form of our invention, showinga manner in which the apparatus maybe used for conveying niateria toconsiderable Fig. 5 is a plan view of some of the parts shown in Fig.4..

Like characters of reference designate corresponding parts in all of thefigures.

designates a concrete mixer of wellknown construction; 1 1 is itscharging and 12 its discharge chute. This is operated in the usual wayand is arranged to discharge into a hopper .the lower end of whichis'sealed by a plate 21. This plate is pivoted at 22. and is held upagainst the lower end of the ho per by a w'ei hted arm 23' which may eie ho per if desired, or outside of the hopper as sl iown so that it maybe manually operated.

' Below the hoppenZO is a pressure chamber 25 which, for convenience ofmanufacture,

maybe in alinement with and'of thesame shape as the ho per 20 so that.the same parts may form t e sides of both the hopper and the pressurechamber. A discharge ipe 26 is connected with the pressure chamlier,preferably at its lower end, and if desired, a valve 30 may be placed inthis pipe.

l 31 designates a'lever which is' connected -valve 'may be operated.

35 is a condenser chamber in below the valve 30. v

40 designates a pipe from a suitable source of fluid pressure supplysuch, for example, as

the pipe 26 pipeisconnectedjwith the pressure chamber 25 at 41 at apoint preferably above the seal of the hopper; A controlling valve 42 inthe pipe 40 provides means for turning the pressure into or shutting itofi from the pressure chamber 25. p v v 43 designates a relief pipeand-44 a manually operated valve in this pipe. At 45 is shown a pressurewith thepressure chamber 25.

ed with the lower end of the'press'ure chamber 25, and 51 is a valve inthis pipe to shut offlthe pi e or to control the flow of water through1t.. v denser chamber is connected with the'water supply by a pipe 53which is controlled by a valve 54. The nozzle 52 is alsoconnected withthe steam or air pressure su ply by a pipe 46 in which is a controllingva ve 47.

vention which We have illustrated we will point out the operation of theapparatus which we have already described.

The matter to be conveyed is first placed in the hopper 20. If theapparatus is to be used. for conveying concrete the various inin themixer 10, and from thence are discharged into the hopper in semi-liquidcondition and designate character X. In the beginning of the-operationthe" valves 30 and 42 n'iay be close and the fmixed concrete allowed topass directly into the pressure chamber '25 by opening the seal 21. -Ifthe valve 30 is close this will stop the outward flow'of the material sothat the concrete will fill the pressure chamber. When a sufiicientuantity of'concrete has thus been placed wlthin the "pressure chamber,the seal 2l is closed, the discharge-con- ..tnolling-valve 30 opened,and valve 43 opened to admit pressure from the source of pressure supply to the ressure chamber. his will cause the material within thepressure chamber to be forced out through the discharge pipe 26.

gage conn'ected A nozzle '52 within the con Before describing the otherparts of our in in the drawings by- ,the Y with the valve 30 and bymeans of which the steam -or compressed air. I This pressure 50 isa-water supply pipe which is conneetgredie'nts which form the concreteare placed condensation which will produce a partial I vacuum into whichthe concrete-from the 4 her through the water pipe 50 in order topressure chamber will be drawn. This will prevent arching of theconcrete in the lower contractedend of the pressure chamber and willfacilitate the o eration of the a aratus. The jet of steam-w 'ch isintroduce lnto the chamber 35 under pressure will also tend to carryalong the moving mass within the discharge (pipe and thus act as abooster. Water un er pressure may be also forced into the condenserchamber and this will prevent the semi-liquid concret setting and willalso aid in forcing it through the discharge pipe.

We also provide means for introducin water into the lower end of thepressure 0 amprevent setting and arching of the concrete at the lowercontracted portion of the pressure. chamber. This water connection alsofurnishes means for filling the lower part of the pressure chamber withwater when not in use, thus keeping the parts clean and preventing themfrom becoming incrusted with and clogged up by hardened concrete. Thewater may also-be forced out of the pressure I chamber by steam or air.pressure or under its own ressure, through the valve 30, condenser camber 35 and discharge pipe 26 to flush these parts and-cleanse them.

While the part of the operation above described is taklng place, thehopper 20 may be gradually filled from the mixer 10 so that as soon asthe material in the'pressure chamber has been forced out as described, anew supply of material may be quickly placed within 7 directly into thehopper 20'.

the pressure'chamber by opening the seal 21 Before doing this the valve42 is closed to shut off the pressure supply from the pressure charnberand it may be necessary toopen the valve 44 to release the plressure, asthe pressure within the chamber as a tendenc'y to maintain the seal inits closed position. The a paratus nay'be worked satisfactorily w-it outthe use of the valve 30 in the discharge pipe but in man cases we findit advantageous to lace a va ve in the pipe not only for facilitatingthe (part of the operation which we have above escribed, but forcontrollin the quantity of material supplied at the disfiiarge oint.

In Fig. 2 we ave'illustrated. a modification of our invention. In thiscase two hop pers 20 and 20"-areused. The mixer 10 in this case is sosituated that it will discharge A chute 13 is provided, however, to leadthe concrete discharged from the mixer into the hopper 20 when desired.The upper section 14 ofthis chute is pivoted at 15 as shown, andis'pro-Y 'vided with an actuating lever 16 by means of whichthe section 14 maybe moved away from the discharge chute 12 of the mixer.

case.

a common piston rod 63.

through the with the controlling gear 72.

The lower end of thehop er 20 is sealed in the manner. before descri ed..21, 23 and 25 designate corresponding parts under the other hopper'20.The discharge pipe from the pressure chamber 25 is designated in thiscase by the numeral 27. The discharge pipes 26 and 27 from the twopressure chamers are connectedthrough a common condenser chamber 35 toadischarge pipe 28.

The nozzle 52 within this condenser chamber may be connected with thefluid pressure supply pipe 40 by a pipe 46, or with-water supply 'pipebypipe 53 as in the previous 32 is a valve in the discharge pipe 27. Itmay be placed in alinement with the valve 30 and the pistons of bothvalves supported upon a common piston rod 32. A connect in'g rod 33 isarranged to connect this piston rod with a bell-crank lever 34 which isivoted. at 34 and 'arran ed to be moved y an actuating rod 36. T e watersupply pipe 50 is shown connected with the lower portions of bothpressure chambers 25 and 25, and

:two controlling valves 51 and 51 are provided as shown. Between the twopressure chambers, a valve is placed. This valve comprisestwo pistons 61and 62 mounted upon The pressure pipe 40 is connected with this valve atits central portion. A pipe .64 is connected with the pressure chamber25 and with the valve 60 ]ports 65 and 66. 67 is a pipe connecting t epressure chamber 25 with the valve 60 through the ports 68 and 69. 70designates a manually operated crank by means of which and a pinion 71 acontrolling gear 72 may be rotated. '17 designates a connecting rodwhich is arranged :to. connect the chute actuating lever 16concentrically The actuating rod 36 for valves 30 and 32 issiinilarlycqnnected with the controlling gear 72, as is also a connectin4 rod 63 between the controlling gear and t e valve 60. In operatingthis form of our invention, when the parts are in the position shown inFig. 2, the semi-liquid concrete or other material in the pressurechamber 25 is being forced out throughdisv charge pipe 26, through valve30, and into and through condenser chamber 35 and the discharge pipe 28.The hopper 20 is shown filled, and the concretefrom the mixer 10 isbeing discharged into the hopper 20 and pressure chamber 25. During thispart of the operation, pressure su ply pipe 40 is connected with the,pressure 0 amber 25 through the port 66 of the valve'60 and the pipe64, at the same time, the pressure from pressure chamber 25" is releasedthrough pipe 67 and port 68 of the valve 60. The parts may be soarranged that the weighted lever 23 is not sufliciently heavy to causethe seal 21 to remain closed when the additional weight of r theconcrete in the hopper 20 is placed upon it if there is no pressurewithin the pressure valve 60, and at thesame pressure -to be admitted topressure chamber 25 through port 69 and pipe ,67. The upper section 14of chute 13 will be moved away from the. discharge chute 12 of the mixer10 so that the concrete issuing therefrom will flow into hopper andthrough seal 21 into pressure chamber 25. The'pressure now admitted topressure chamber 25 willcause the seal 21 to be automatically closed andwill cause the concrete in this pressure cham- Inthis manner a chargepipe 28 to her 25 pipe 27,. valve 32, into and denser chamber 35 to beforced out through discharge through the cone forced through the disthedesired point of deliv ery, and a very large quantity of material maythus be conveyed during a given time in a simple manner.

In Figs. 4 and 5 we have shown another manner of carrying out ourinvention. In this casethe mixer 10 is placed midway between the twohoppers bers, and the concrete discharged from the mixer is led directlyinto one. or the other of the pressure chambers or into the hoppersabove them by a pivoted chute 14. Beyond the condenser chamber 35 othercondenser chambers 35 and 35 are shown in the discharge pipe 28. All thecondenser chambers may be connected with the pipes 40 and as shown. Ourapparatus may be used successfully for conveying material to conofconcrete may siderable distances without the aid of these condenserchambers, but as these serve the purpose of preventing the concrete fromsetting during the operation, and also act as boosters, it may be seenthat the'dischar'ge pipe may be that material'mayj be conveyed greatdistances ,through it. p The pipe line may be provided at intervals withsections 29 of flexible material so that it may be shifted withoutinterruptin its service. Its outer end 28 may be exible and chargenozzle 28*, an

the valve 2SImay placed near the point'of discharge to facilitate thehandling of the conveyed material at the By this apparatus the mixedconcrete maybe carried any distance from the .mixer to the desired pointof dis.- 5 discharged directly into 5 Thus algreat saving of .time andlabor is accomplished and advan point of discharge.

chardge and may be mol s or forms.

tages gained over former methods used, such as b buckets, wheelbarrow's,carts, hoists, derrloks or telpherage systems. The: con

time will cause and discharge pipe 28. ractically continuous flow.

and pressure chaInpressure chamber, and

removable seal between the hopper I chamber, a discharge pipe connected.with extended any desired length and said chamber, and a pressure pi ecpnriected Iprovided with the dis-1 be i b our invention to show that wedo not limit ourselves to anyspecific mechanism or app ratus .for'carrying 1t course, obvious that our invention is applicableforconveying other material than concrete.

What we claim 1s.

' 1. The combination of a hopper, a chambetween'the hopperber, aremovable seal and the'chamber, a discharge pipe'connected with thechamber, and meansfor maintaining pressure within the chamber.

2. Thecombination of a hopper, a chamber, a removable seal between thehopper and the chamber, a discharge pipe connected with the chamber,pressurewithin the chamber, releasing the pressure within the chamber.

3. In a conveyer, a chamber, a hopper, a

means for maintaining removable seal between the hopper and the. lpipeconnected with.

chamber, a discharge the lovs er portion of sai chamber, a-valve in .thedischarge pipe, a pressure plpe-connected with the upper portion of thechamber, anda valve in the pressure pipe. 4. The combination ofapressure chamber,

and means forinto effect, and it is, of'

a discharge pipe connected with said chamber,

means for mtro'ducin'g; pressure into the additional means for directlyintroducing pressure into the discharge pipe.

5. In a conveyer, a chamber, a. hopper, a

removable seal between the hopper' and the I chamber, a discharge pipeconnected with said chamber, meansfor introducing'pressu-re into thechamber, and means for introducing pressure into the discharge ipe,

6. In a conveyer, a chamber, a opper,. a

with the chamber and with-t e discharge pipe. 7. In a conveyer, apressure chamber, a

hopper, a removable seal .between the hopper and the chamber, adischarge pciipe con nected with the lower portion of sai chamthe up erportion of the pipe connected with g p the. ischarge-pipe, a

chamber and valve in the pressure pipe in its connection with thepressure cham er, a valve in the discharge pipe, a pressure,

of the chamber, a discharge pipe for conveyingthe material away. fromthe chamber, and acondenser chamber in the discharge pipe. p 9. In aconveyer, a chamber, ahop er, a seal between the hopper and the cham er,a discharge pipe connected with said chamber, means for introducingpressure into the chamjber, a condenser chamber in the discharge pipe,means for introducing stealn into sald condenser chamber, and means forintroducing Water .into'said condenser chamber. 10. In a conveyer, achamber,.a' hopper, a removable seal between the hopper and the chamber,a discharge pipe connected with .the lower portion of said. chamber, acon- 'denser chamber in the dischargepipe, a pressure ipe connected withthe upper portion of t e chamber, means for introducing steam into thecondenser chamber, and means for introducing water into the condenserchamber.

11. In a conveyer, a ressure chamber, a discharge pipe. connected withsaid pressure chamber, ,a steam. pipe connected with the pressurechamber and with the discharge pipe, and awater pipe connected with thepressure chamber and with the discharge pipe.

\ 12. In a conveyer, a chamber,'a hopper, a removable seal .between thehopper and the chamber, a.discharge pipe connected vrith said chamber, apressure pipe connected with .the chamber, and a water pipe connectedwith the chamber.

13. In a conveyer, a ressure chamber, 'a discharge pipe connecte withsaid pressure L 3 chamber, a condenser chamber in the charge pipe, asteam pipe connected with .the a pressure chamber and withthe condenserchamber, and a water pipe connected with; the pressure chamber and withthe condenser chamber.

14. In a conveyer, a pressure chamber a discharge pipe connected withthe pressure chamber, a pressure pi e connected with the pressurechamber, an connections between the pressure pipe and the discharge pi eat intervals alongthe length ofthe disc arge p1 e. 1 I i5. Thecombination of a plurality of pressure chambers, a discharge ipe,connections between the lower ends oft e chambers and .the dischargepipe, a valve in each of said discharge connections, a pressure pipeconnected with the up er ortions of the pressure chambers a va lveetweenthe pressure ipe and each of the chambers, and means or actuating thevalves for introducing ressure into any one of the chambers and. 0 oropening the valve in the discharge con.-

. nection of the same chamber.

1 6. The combination of a plurality of hoppers, a plurality of chambersassociated therewith, .a removable seal between each hopper 5 .and itsrespective chamber, a discharge pipe dis- - lower portion connected with.,each of the chambers,and nfeans' foralternately' introducing pressureinto one or another of the chambers.

17. The combination of a pers, a plurality of cham ers associatedtherewith, a removable seal between each hopper and its respectivechamber-,a dis--' charge pi e, a connection between the lower portion 0each chamber and-the discharge pipe; a valve in each of said dischargeconnections, a pressurepi ie connected'with the upper portion of the cambers, a valve between the pressure pipe and its connection i with eachof the chambers, and meansqfor "actuating the valve to connect thepressure pipe with any one of the chambers, to open the valve in thedischarge connectionof, the same chamber, and to c chambers.

18. The combination ofa plurality of hop pers, a plurality of chambersassociated with the hoppers, a counterbalanced seal between each hopperand its respective chamber,a discharge pipe,- a connection. between ithe of each 'chambersand" the discharge pipe, .a valve in each of saiddischarge connections, a pressure pipe connected with the up er portionof eaich of said chambers, ,a

valve etween the pressure pi e and its. connections with each: of the cambers, said valves being arranged to introduce, pressure 7 into oneor-another of the chambers and to release the pressure from the othersof said chambers, and means for actuating the pres-' sure pi e valvesand the dischargeconnec'' 7 tion va ves together.

19. The combination of a plurality of pres? sure chambers, a dischargeipe, connections between the lower ends of t e chambers and thedischarge pipe, a valve in each of said discharge connect1ons, acondenser chamber in the discharge pipe, a steam ipe connected with theupper' portions 0 the pressure chambers and with the condenser chamber,a

valve between the steam pipe and each of the chambers, and means foractuating .the. valves for lntroducingpressure into any one of thechambers and for opening the valve in the discharge connection of thesame chamber.

20'. Tliecombination of a plurality 'of pressure chambers, a dischargeplipe, connections between the lower ends of t the discharge pipe, avalve in each'of said discharge connections, a condenser chamber I inthe discharge pipe, a steam pipe connected with the upper portions-ofthe pressure chain'- bers and with. the condenser chamber, :a water pipeconnected with the lower portions of the pressure chambers and with thecon denser chamber, a valve between the steam pipe and each of thechambers, a valve .between the water ipe and each of. the chain-1 bers,and means or actuating the valves for plurality of hoposethe valve inthe .discha'rgel connections of the others of said e chambers and withthe lower portions of the pressure chambers and with the condenserchambers, a

valve between the steam pipe and each of the chambers, a valve betweenthe water pipe [scan] and each of the chambers, means for actuate,

ing the valves for introducin%pressure into j or opening the p an one ofthe chambers, vand va ve in the discharge connection of the samechamber, flexible omts invt he dischar e pipe and a flexible dischargingend on t e dlS- charge pipe.-

In testimony whereof we have signed our respective names to thisspecification in the presence of two subscribln'g wltnesses.

William H. Larkin, jr., of Worcester, Massachusetts, for an improvementin Concrete Conveyors, an error appears in the printed specificationrequiring correction,- as f llows: In line 104, page 2, the wordconcentrically should read eccenirwallp; and that the said LettersPatent should be read with this correction therein that the same may.conform to'the record of the case in the E 'atent Qflice.

sighed and sealed this 29th day of December, D., 1908.

-o.- o; BI LLINGS, Acting Commissioner of Patents.

It is hereby certified that in Letters Patent No.i894,813, grantedAugust 4, 19Q8, upon the application of Josiah William Buzzell, of EastOrange, New Jersey, and

. with the lower portions of the pressure chambers and with thecondenser chambers, a

valve between the steam pipe and each of the chambers, a valve betweenthe water pipe [scan] and each of the chambers, means for actuate,

ing the valves for introducin%pressure into j or opening the p an one ofthe chambers, vand va ve in the discharge connection of the samechamber, flexible omts invt he dischar e pipe and a flexible dischargingend on t e dlS- charge pipe.-

In testimony whereof we have signed our respective names to thisspecification in the presence of two subscribln'g wltnesses.

William H. Larkin, jr., of Worcester, Massachusetts, for an improvementin Concrete Conveyors, an error appears in the printed specificationrequiring correction,- as f llows: In line 104, page 2, the wordconcentrically should read eccenirwallp; and that the said LettersPatent should be read with this correction therein that the same may.conform to'the record of the case in the E 'atent Qflice.

sighed and sealed this 29th day of December, D., 1908.

-o.- o; BI LLINGS, Acting Commissioner of Patents.

It is hereby certified that in Letters Patent No.i894,813, grantedAugust 4, 19Q8, upon the application of Josiah William Buzzell, of EastOrange, New Jersey, and

Correction in Letters Patent No. 894,813

It is hereby certified that in Letters upon the application of JosiahWilliam William H. Larkin. jr., of Worcester, Massachusetts, for animprovement in Concrete- 0011 veyers,

follows: In line 104, page 2, the word concentrically an error appearsin the printed that the said Letters Patent should be read with thiscorrection therei specifieation requiring should read eccenlrically;

correction, as

an d

n that the same '0. C. BILLINGS, Acting Comm ssioner of Patents.

